提高挖掘机斗齿寿命的研究现状和发展  

Study on Development and Improving Lifetime of Excavator Teeth

作　　者：周志丹[1] 陈烜[1] 刘金龙[1] 

机构地区：[1]中国矿业大学材料科学与工程学院,江苏徐州221116

出　　处：《煤矿机械》2011年第3期7-9,共3页Coal Mine Machinery

摘　　要：总结国内外挖掘机斗齿所使用的材料,分析个别元素提高斗齿使用性能的原因,举例说明加入相应元素对斗齿寿命的效果。总结了几种提高斗齿寿命的工艺途径,其中包括提高钢的纯度、热处理、预硬化处理、堆焊、电渣熔铸、镶块和粉末喷焊等。简要介绍了从改良斗齿结构和使用组合斗齿来延长斗齿寿命,提高挖掘机工作效率。还列举了几种挖掘机斗齿材料。Summarized the domestic and foreign materials used by excavator dipper teeth, and explained why some elements can improve the lifetime of dipper teeth. Then summarized some measures on improving the wear of dipper teeth, including improving purity of steel, heat treatment, surface harden, surfacing, electroslag casting, embedded lump and powder spray welding. It tersely introduced the structure of dipper teeth and composite teeth. Lastly, some materials of teeth are listed.

关 键 词：挖掘机斗齿 磨损 寿命 

分 类 号：TD422.2[矿业工程—矿山机电] TH117.1[机械工程—机械设计及理论]